Seiko Cal. 6188 - 956

The Seiko 6188-956 represents an important milestone in Seiko's 1981 lineup. Powered by the 6188 caliber with 36j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-faca72a3d007]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1981

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