Seiko Essentials SUR377 (titanium)

The Seiko Essentials SUR377 (titanium) is a current-production dress watch with a titanium (grade undisclosed) case, finished with two-tone brushed and polished. At 74 g it sits around the middle for dress watches in the guide, and is priced well under the $648.50 median for the category. It ships on a matching titanium bracelet rather than a strap.

1 official photo · reader photos welcome

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)

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