Seiko Cal. 3858 - 787

This Spring Drive model from 1983 features a 43mm Two-Tone case. It features a Green dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-0fbf5f05c6f9]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1983

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