Seiko Cal. 6364 - 108

This Hand-Winding model from 1990 features a 38mm Hardlex-Coated Steel case. Powered by the 6364 caliber with 26j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-a3303ee2a47d]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1990

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