Seiko Cal. 6188 - 378

This Hand-Winding model from 1988 features a 40mm Hardlex-Coated Steel case. Powered by the 6188 caliber with 21j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-8c3b07a21a95]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1988

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