Seiko Cal. 3887 - 118

This Spring Drive model from 1972 features a 37mm PVD Black case. It features a Green dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-0b9a4b3980a4]

Also known as: Monster, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1972

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