Seiko Cal. 0776 - 640

This Spring Drive model from 1990 features a 36mm Hardlex-Coated Steel case. Powered by the 0776 caliber with 19j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-ea7c7c418a66]

Also known as: Helmet, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1990

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