Seiko Cal. 3860 - 268

This Solar model from 1970 features a 40mm PVD Black case. Powered by the 3860 caliber with 20j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-1f2502d0f6ff]

Also known as: Sumo, Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1970

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