The Titanium Field GuidePicks of the month

Seiko Essentials SUR377 (titanium)

The Seiko Essentials SUR377 (titanium) is a 40.2 mm titanium dress watch with a Seiko 6N52 quartz movement. At a list price of $370, it costs less than 91% of the 283 titanium dress watches in production, leaving out the fashion brands.

All Seiko watchesDress watchesUnder $500Under 11 mm thickLightweightLightest, rankedOn a titanium bracelet
Price
$370
Material
Titanium
Grade / type
Titanium (grade undisclosed)
Weight
74 g (with bracelet)
Water resistance
100 m
Type
Dress
Case diameter
40.2 mm
Thickness
8.4 mm
Lug-to-lug
47 mm
Origin
Japan
Movement
Quartz, plus or minus 15 seconds per month, approx. 3-year battery life
Caliber
Seiko 6N52
Complications
Date
Colour
Grey
Surface treatment
Two-tone brushed and polished
Finish technology
Natural finish
Nickel-free
Unconfirmed (contact-point materials not all confirmed)
Bracelet / strap
Titanium bracelet, three-fold clasp with push-button release
Matching bracelet
Standard
Crystal
Sapphire
Display back
No
Dial
Green sunray with gold-tone hands and markers
Dial colours
Green Gold
Lume
LumiBrite on hands and indexes
Availability
Offered
Status
Current
Not published
Reference, Power reserve, Hardness, Construction, Caseback
Medium confidence Verified Aug 2026 Source: Seiko Watch Corporation (SUR377 specifications) / Seiko USA (SUR377: Essentials, green sunray dial, two-tone titanium bracelet) / Long Island Watch (discovery lead, authorised dealer listing)
Facts are free to cite with a link.
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Frequently asked questions

What grade of titanium is the Seiko Essentials SUR377 (titanium)?

Titanium, with no grade stated. The record is at medium confidence, so check the maker's page before relying on it.

What size is the Seiko Essentials SUR377 (titanium)?

The case is 40.2 mm across, 8.4 mm thick and 47 mm from lug to lug. It is water resistant to 100 m.

How much does the Seiko Essentials SUR377 (titanium) weigh?

About 74 g on its bracelet.

How much does the Seiko Essentials SUR377 (titanium) cost, and is it available?

It is in production, at a list price of $370.

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