Seiko Cal. 3860 - 739

This Hand-Winding model from 1985 features a 37mm PVD Black case. Powered by the 3860 caliber with 20j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-c94af333959e]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1985

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