Seiko Cal. 7177 - 678

This Hand-Winding model from 1975 features a 38mm Titanium case. Powered by the 7177 caliber with 26j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-0e4ea0d9149c]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1975

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