Seiko Cal. 6274 - 660

This Spring Drive model from 1990 features a 40mm PVD Black case. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-557f8b6cbfd3]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

34j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1990

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