https://18kcustom.com/journal/ 2026-10-27T12:00:00+00:00 weekly 0.9 https://18kcustom.com/wp-content/uploads/shared_catalog/journal/5-axis-swiss-cnc-milling-solid-18k-gold-watch-cases-tolerances.jpg 18K CUSTOM — Horological Research Journal Laboratory-verified solid 18K gold Au750 and Pt950 horological research monographs by 18K CUSTOM https://18kcustom.com/journal/5-axis-swiss-cnc-milling-solid-18k-gold-watch-cases-tolerances/ 2026-10-19T17:30:00+00:00 weekly 0.88 https://18kcustom.com/wp-content/uploads/shared_catalog/journal/5-axis-swiss-cnc-milling-solid-18k-gold-watch-cases-tolerances.jpg 5-Axis Swiss CNC Milling Solid 18K Gold Watch Cases (±2um) | 18K CUSTOM Swiss 5-axis CNC diamond micro-milling spindle carving an octagonal watch case from a solid 18K rose gold billet https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w5_1_cug3jl4mf3jh1.jpg Audemars Piguet Royal Oak Concept Spider-Man Flying Tourbillon Openworked Titanium Ref. 26631TI.OO.D002CA.01 (Ref. 26631TI.OO.D002CA.01) — 108.7g | 18K CUSTOM Audemars Piguet Royal Oak Concept Spider-Man Flying Tourbillon Openworked Titanium Ref. 26631TI.OO.D002CA.01 — Verified Mettler-Toledo Mass 108.7g in Solid 18K Gold Au750 / Pt950 (5-Axis Swiss CNC Milling Solid 18K Gold Watch Cases (±2um)) https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w118_1_6wpa3i6gr9kh1.jpg Audemars Piguet Royal Oak Selfwinding Chronograph 41mm DiW Carbon Racer Edition Ref. 26240 (Ref. 26240) — 66.0g | 18K CUSTOM Audemars Piguet Royal Oak Selfwinding Chronograph 41mm DiW Carbon Racer Edition Ref. 26240 — Verified Mettler-Toledo Mass 66.0g in Solid 18K Gold Au750 / Pt950 (5-Axis Swiss CNC Milling Solid 18K Gold Watch Cases (±2um)) https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w5_5_5r8th54mf3jh1.jpg Audemars Piguet Royal Oak Concept Spider-Man Flying Tourbillon Openworked Titanium Ref. 26631TI.OO.D002CA.01 (Ref. 26631TI.OO.D002CA.01) — 108.7g | 18K CUSTOM Audemars Piguet Royal Oak Concept Spider-Man Flying Tourbillon Openworked Titanium Ref. 26631TI.OO.D002CA.01 — Verified Mettler-Toledo Mass 108.7g in Solid 18K Gold Au750 / Pt950 (5-Axis Swiss CNC Milling Solid 18K Gold Watch Cases (±2um)) https://18kcustom.com/journal/authentic-namibian-gibeon-meteorite-watch-dials-widmanstatten/ 2026-10-21T16:45:00+00:00 weekly 0.88 https://18kcustom.com/wp-content/uploads/shared_catalog/journal/authentic-namibian-gibeon-meteorite-watch-dials-widmanstatten.jpg Authentic Gibeon Meteorite Watch Dials & Widmanstatten Etch | 18K CUSTOM Raw crystalline slice of Namibian Gibeon iron meteorite beside a finished Widmanstatten meteorite watch dial in a solid 18K rose gold case https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w22_1_lgm9h5uqwksh1.jpg Rolex Cosmograph Daytona Gibeon Meteorite Dial & Oysterflex 18K Everose Gold Ref. 126515LN (Ref. 126515LN) — 160.8g | 18K CUSTOM Rolex Cosmograph Daytona Gibeon Meteorite Dial & Oysterflex 18K Everose Gold Ref. 126515LN — Verified Mettler-Toledo Mass 160.8g in Solid 18K Gold Au750 / Pt950 (Authentic Gibeon Meteorite Watch Dials & Widmanstatten Etch) https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w98_1_95p53u1rtfnh1.jpg Rolex GMT-Master II Gibeon Meteorite Dial 18K White Gold Ref. 126719BLRO (Ref. 126719BLRO) — 217.0g | 18K CUSTOM Rolex GMT-Master II Gibeon Meteorite Dial 18K White Gold Ref. 126719BLRO — Verified Mettler-Toledo Mass 217.0g in Solid 18K Gold Au750 / Pt950 (Authentic Gibeon Meteorite Watch Dials & Widmanstatten Etch) https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w713_1_4di5ushf3fcf1.jpg Rolex Cosmograph Daytona Gibeon Meteorite Dial & Black Cerachrom Bezel on Oysterflex 18K Yellow Gold Ref. 126518LN (Ref. 126518LN) — 160.4g | 18K CUSTOM Rolex Cosmograph Daytona Gibeon Meteorite Dial & Black Cerachrom Bezel on Oysterflex 18K Yellow Gold Ref. 126518LN — Verified Mettler-Toledo Mass 160.4g in Solid 18K Gold Au750 / Pt950 (Authentic Gibeon Meteorite Watch Dials & Widmanstatten Etch) https://18kcustom.com/journal/hand-chamfered-openworked-skeleton-bridges-anglages-atelier/ 2026-10-23T11:55:00+00:00 weekly 0.88 https://18kcustom.com/wp-content/uploads/shared_catalog/journal/hand-chamfered-openworked-skeleton-bridges-anglages-atelier.jpg Hand-Chamfered Openworked Skeleton Bridges & Interior Anglage | 18K CUSTOM Master watchmaker hand-polishing the mirror anglage bevels of an openworked gold skeleton movement bridge with gentian pegwood under a microscope https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w13_1_k7fvvnj3ejvh1.jpg Audemars Piguet Royal Oak Double Balance Wheel Openworked 41mm Ref. 15407ST.OO.1220ST.01 (Ref. 15407ST.OO.1220ST.01) — 162.3g | 18K CUSTOM Audemars Piguet Royal Oak Double Balance Wheel Openworked 41mm Ref. 15407ST.OO.1220ST.01 — Verified Mettler-Toledo Mass 162.3g in Solid 18K Gold Au750 / Pt950 (Hand-Chamfered Openworked Skeleton Bridges & Interior Anglage) https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w11_1_osu8znusfjvh1.jpg Vacheron Constantin Overseas Ultra-Thin Skeleton 18K White Gold Ref. 4300V/220G-B909 (Ref. 4300V/220G-B909) — 241.7g | 18K CUSTOM Vacheron Constantin Overseas Ultra-Thin Skeleton 18K White Gold Ref. 4300V/220G-B909 — Verified Mettler-Toledo Mass 241.7g in Solid 18K Gold Au750 / Pt950 (Hand-Chamfered Openworked Skeleton Bridges & Interior Anglage) https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w63_1_36l8j6nt3eqh1.jpg Audemars Piguet Royal Oak Double Balance Wheel Openworked 41mm Diamond-Set Bezel 18K White Gold Ref. 15412BC.SS.1220BC.02 (Ref. 15412BC.SS.1220BC.02) — 224.3g | 18K CUSTOM Audemars Piguet Royal Oak Double Balance Wheel Openworked 41mm Diamond-Set Bezel 18K White Gold Ref. 15412BC.SS.1220BC.02 — Verified Mettler-Toledo Mass 224.3g in Solid 18K Gold Au750 / Pt950 (Hand-Chamfered Openworked Skeleton Bridges & Interior Anglage) https://18kcustom.com/journal/custom-sw-dials-deep-ar-sapphire-crystal-optical-upgrades/ 2026-10-25T14:20:00+00:00 weekly 0.88 https://18kcustom.com/wp-content/uploads/shared_catalog/journal/custom-sw-dials-deep-ar-sapphire-crystal-optical-upgrades.jpg Custom SW Dials, Buff Hands & Double-AR Deep Crystal Optics | 18K CUSTOM Custom watchmaker brass tray holding turquoise, lapis lazuli, malachite, and tiger eye stone dials beside 18K gold hands and AR sapphire crystal https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w151_1_ufag9axouigh1.jpg Rolex Cosmograph Daytona Le Mans 100th Anniversary 18K White Gold Ref. 126529LN (Ref. 126529LN) — 216.5g | 18K CUSTOM Rolex Cosmograph Daytona Le Mans 100th Anniversary 18K White Gold Ref. 126529LN — Verified Mettler-Toledo Mass 216.5g in Solid 18K Gold Au750 / Pt950 (Custom SW Dials, Buff Hands & Double-AR Deep Crystal Optics) https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w68_1_95uh9vomozph1.jpg Rolex Cosmograph Daytona Beach Chrysoprase Green Mother-of-Pearl 18K White Gold Ref. 116519 (Ref. 116519) — 138.5g | 18K CUSTOM Rolex Cosmograph Daytona Beach Chrysoprase Green Mother-of-Pearl 18K White Gold Ref. 116519 — Verified Mettler-Toledo Mass 138.5g in Solid 18K Gold Au750 / Pt950 (Custom SW Dials, Buff Hands & Double-AR Deep Crystal Optics) https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w136_1_5e4adh2bkoih1.jpg Rolex Cosmograph Daytona Blue Sodalite Stone Dial 18K White Gold Ref. 116589SACI (Ref. 116589SACI) — 153.2g | 18K CUSTOM Rolex Cosmograph Daytona Blue Sodalite Stone Dial 18K White Gold Ref. 116589SACI — Verified Mettler-Toledo Mass 153.2g in Solid 18K Gold Au750 / Pt950 (Custom SW Dials, Buff Hands & Double-AR Deep Crystal Optics) https://18kcustom.com/journal/bespoke-vvs-baguette-diamond-sapphire-bezel-setting-18k-gold/ 2026-10-27T12:00:00+00:00 weekly 0.88 https://18kcustom.com/wp-content/uploads/shared_catalog/journal/bespoke-vvs-baguette-diamond-sapphire-bezel-setting-18k-gold.jpg Bespoke VVS Baguette Diamond & Sapphire Setting in 18K Gold | 18K CUSTOM Gem-setter under a binocular microscope channel-setting VVS baguette diamonds and blue sapphires into a solid 18K white gold watch bezel https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w20_1_hh28qtu3scth1.jpg Rolex Cosmograph Daytona Off-Catalogue Blue Sapphire Bezel & Obsidian Dial 18K White Gold Ref. 126599TSA (Ref. 126599TSA) — 216.7g | 18K CUSTOM Rolex Cosmograph Daytona Off-Catalogue Blue Sapphire Bezel & Obsidian Dial 18K White Gold Ref. 126599TSA — Verified Mettler-Toledo Mass 216.7g in Solid 18K Gold Au750 / Pt950 (Bespoke VVS Baguette Diamond & Sapphire Setting in 18K Gold) https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w61_1_ne8ahqwm56rh1.jpg Rolex Cosmograph Daytona Barbie Pink Opal & Ruby 18K Yellow Gold Ref. 126538TBR (Ref. 126538TBR) — 160.3g | 18K CUSTOM Rolex Cosmograph Daytona Barbie Pink Opal & Ruby 18K Yellow Gold Ref. 126538TBR — Verified Mettler-Toledo Mass 160.3g in Solid 18K Gold Au750 / Pt950 (Bespoke VVS Baguette Diamond & Sapphire Setting in 18K Gold) https://18kcustom.com/wp-content/uploads/shared_catalog/v17_wm_custom/w70_1_3xpdec2cnzph1.jpg Patek Philippe Aquanaut Luce High Jewelry 18K White Gold Ref. 5062/450G-010 (Ref. 5062/450G-010) — 114.5g | 18K CUSTOM Patek Philippe Aquanaut Luce High Jewelry 18K White Gold Ref. 5062/450G-010 — Verified Mettler-Toledo Mass 114.5g in Solid 18K Gold Au750 / Pt950 (Bespoke VVS Baguette Diamond & Sapphire Setting in 18K Gold)