Photos appear once Heritus approves image use
Custom Watch CW330 Automatic - Gun Metal Finish
Lugs stay on wrists from about 6.5 in (lug-to-lug rule of thumb)
Last checked Oct 26, 2026
View on Heritus’s site ↗From Heritus
Built-to-order. 4 weeks turnaround. SKX-SUB Conversion Gun Metal Seiko-Submariner 42 mm Automatic FORGED CARBON DIAL Specifications: Seiko NH35A Caliber Automatic 41 Hours Power Reserve Vibrations Per Hour 21,600 bpm Bi-directional Winding Rotor Date Display Complication Regulated @ +/-5 Sec Per Day Characteristics: 904L Grade Stainless Steel Front Sapphire Crystal (Blue AR Coating) Carbon Fiber Bezel Insert Screw Down Crown Window Case Back 20 ATM Water Resistant Unidirectional Bezel Signed Crown Dimensions: Case diameter: 42 mm Lug to lug: 48 mm Thickness: 14 mm Lug size: 22 mm Testing: The watch movement accuracy is tested and regulated prior and after assembling. The case is water tested at 20 ATM prior to and at 20 ATM after assembling. Limited Warranty: 12 months limited warranty. The watch includes box, watch instructions, and accessories. We specialize in crafting personalized timepieces tailored to individual client preferences. It's important to note that this particular watch is not manufactured by Seiko and we have no affiliation with, nor do we represent Seiko or any other watch brand.
Specifications
Details and photos come from Heritus’s website, last checked Oct 26, 2026. Specs were read automatically and may contain mistakes.
Case
- Diameter
- 42 mm
- Lug-to-lug
- 48 mm
- Thickness
- 14 mm
- Thickness incl. crystal
- Not listed
- Lug width
- Not listed
- Material
- Not listed
Movement
- Type
- Automatic
- Caliber
- Seiko NH35
- Power reserve
- Not listed
- Functions
- Not listed
Crystal and bezel
- Crystal
- Sapphire
- Bezel
- Not listed
Water resistance
- Rated to
- 200 m
Dial and lume
- Dial
- Not listed
- Lume
- Not listed
Strap
- Strap
- Not listed
Every spec Heritus lists
- Lug size
- 22 mm Testing:
- Thickness
- 14 mm
- Lug to lug
- 48 mm
- Case diameter
- 42 mm
Videos
No videos feature this watch yet.
More from Heritus
Similar watches
- Sold out
- Sold out