lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Diver under $2,000·Dress under $5,000·Chronograph under $5,000·Best sport watches·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Watch size chart·Wrist-fit calculator·Selling calculator·What should I buy?·Market index·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyDelete accountCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/Cronos/Sea Master Diver 41mm
SpecStudio
Cronos Sea Master Diver 41mm
Click to inspect
Cronos · Cronos

Cronos Sea Master Diver 41mm

Ref. L6004 · Diver

$165In stock

Case

Diameter
41mm
Thickness
12.7mm
Lug-to-lug
47mm
Lug width
20mm
Material
316L Stainless Steel
Finish
316L stainless steel
Water resistance
200m

Movement

Caliber
Seiko NH35
Type
Automatic
Hacking
Yes
Hand-winding
Yes

Seiko

Seiko's third-party supply version of the 4R35, sold to external watch brands and modders worldwide. Adds hacking and hand-winding over the 7S26 it effectively replaced. The NH35 has become the default automatic movement for watch modding and microbrand watches, thanks to its low cost, reliability, and wide availability of compatible parts including dials, hands, and cases in the Seiko-compatible format.

Design language

Case shape
round
Dial style
matte
Bezel
rotating_unidirectional
Bracelet
rubber_strap

AI-detected from the product image

Cronos collection · 13 watches

36mm Automatic (L6050M)
36mm Automatic (L6050M)36mm
40mm Diver (L6045)
40mm Diver (L6045)40mm
41mm GMT (L6021)
41mm GMT (L6021)41mm
BB58 Diver 41mm (L6017)
BB58 Diver 41mm (L6017)41mm
Daily Sunray Dial 41mm
Daily Sunray Dial 41mm41mm
Date Luxury PVD Gold 40mm
Date Luxury PVD Gold 40mm40mm
Diver Luxe 40mm
Diver Luxe 40mm40mm
DJ Homage Sub Diver (L6046M)
DJ Homage Sub Diver (L6046M)40mm
Explorer 39mm Diver (L6016)
Explorer 39mm Diver (L6016)39mm
GMT BB Pro 39mm
GMT BB Pro 39mm39mm
Rhombus Perlage 39mm Limited (L6028)
Rhombus Perlage 39mm Limited (L6028)39mm
Water Ghost Diver Date (L6005)
Water Ghost Diver Date (L6005)40mm
Alternatives

Market

Retail$165

No forum listings recorded for this watch yet.

Similar watches

Ventus Watches Northstar

Ventus Watches

Northstar

40mm · Automatic$349

Spinnaker Spence 300

Spinnaker

Spence 300

40mm · Automatic$650

Thorn Marine 200 Master Diver Watch

Thorn

Marine 200 Master Diver Watch

42mm · Automatic$169

Duxot Atlantica Diver Automatic

Duxot

Atlantica Diver Automatic

42mm · Automatic$159

Noctua Watch Corp. Sentinel

Noctua Watch Corp.

Sentinel

42mm · Automatic$429

Revelot R11

Revelot

R11

42mm · Automatic$415

View all alternatives

Community

“

Owners widely praise the Cronos Sea Master Diver 41mm as a strong value proposition, with one enthusiast calling it the best Asian diver "clomage" available on AliExpress for under $250. The 41mm case wears smaller than its lug-to-lug measurement suggests, fitting well on smaller wrists. A drawback noted by some is the quirky branding. Overall, owners rate the Cronos Sea Master Diver 41mm highly for its impressive value and comfortable wearability at its price point.

Synthesized from 3 sources
WatchUSeek·2↗
WatchCrunch↗
Open the discussion

On real wrists

No shots yet. Show how it wears.

Related

Ask the communityStart a discussion about the Sea Master Diver 41mm: get takes from other collectors.Ask →

Discussion