Seiko Cal. 3881 - 257

The 3881-257 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Cream dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-e836a574f4e6]

Also known as: Monster, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1968

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