Seiko Cal. 3891 - 625

This Quartz model from 1987 features a 40mm Two-Tone case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-46d5f7a7ebff]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1987

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