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Lugworthy
40 mm · 48 mm lug-to-lug
Photos appear once Heritus approves image use

Heritus

Custom Watch CW910 MechaQuartz

Lugs stay on wrists from about 6.5 in (lug-to-lug rule of thumb)

$321In stock

Last checked Oct 26, 2026

View on Heritus’s site ↗

From Heritus

In-Stock Seiko-Daytona 40 mm MechaQuartz Specifications: Seiko VK63 MechaQuartz Caliber Date Display Complication Characteristics: 316L Grade Stainless Steel Front Sapphire Crystal Ceramic Bezel Insert Screw Down Crown 5 ATM Water Resistant Dimensions: Case diameter: 40 mm Lug to lug: 48 mm Thickness: 13 mm Lug size: 20 mm Testing: The watch movement accuracy is tested and regulated prior and after assembling. The case is water tested at 5 ATM Limited Warranty: 12 months limited warranty. The watch includes box, watch instructions, and accessories. IMPORTANT NOTICE: This watch is water-resistant and was pressure-tested prior to shipment at the rated specification at the time of assembly. Water resistance is not a permanent condition and may be affected by gasket wear, accidental impacts, improper handling, temperature changes, chemical exposure, chlorine, salt water, or failure to properly secure the crown. The customer is solely responsible for ensuring that the crown is fully secured before any contact with water. Because it is impossible to verify handling conditions after delivery, any damage caused by water intrusion, moisture, humidity, or condensation is strictly excluded from warranty coverage under all circumstances. No refunds, replacements, repairs, reimbursements, or chargebacks will be accepted for water-related damage. 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
40 mm
Lug-to-lug
48 mm
Thickness
13 mm
Thickness incl. crystal
Not listed
Lug width
Not listed
Material
Not listed

Movement

Type
Quartz
Caliber
Seiko VK63
Power reserve
Not listed
Functions
Not listed

Crystal and bezel

Crystal
Sapphire
Bezel
Not listed

Water resistance

Rated to
Not listed

Dial and lume

Dial
Not listed
Lume
Not listed

Strap

Strap
Not listed
Every spec Heritus lists
Lug size
20 mm Testing:
Thickness
13 mm
Lug to lug
48 mm
Case diameter
40 mm

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