Seiko Cal. 3891 - 211

This Spring Drive model from 1987 features a 34mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-8255bc6d94b3]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1987

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