Seiko Cal. 3897 - 770

This Automatic model from 1977 features a 34mm Titanium case. Powered by the 3897 caliber with 19j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-1e3ee475dee7]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1977

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