Seiko Cal. 3881 - 250

This Spring Drive model from 1989 features a 37mm Stainless Steel case. It features a Silver dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-de2f7140b304]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1989

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