Seiko Cal. 3851 - 315

This Hand-Winding model from 1969 features a 37mm Two-Tone case. Powered by the 3851 caliber with 28j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-4a4a131c5ee2]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1969

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