Seiko Cal. 0777 - 857

This Quartz model from 1977 features a 38mm Stainless Steel case. Powered by the 0777 caliber with 36j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-78cffcb12e77]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1977

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