Seiko Cal. 5615 - 281

This Spring Drive model from 1982 features a 41mm PVD Black case. It features a Black dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-ee9da88eeb4b]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1982

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