Seiko Cal. 3855 - 646

This Solar model from 1980 features a 41mm PVD Black case. Powered by the 3855 caliber with 29j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-720bded36c9c]

Also known as: Monster, Bellmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1980

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