Seiko Cal. 0770 - 183

This Spring Drive model from 1977 features a 39mm Titanium case. With its 20mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-75020f198527]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1977

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