Seiko Cal. 6337 - 920

This Hand-Winding model from 1990 features a 45mm Hardlex-Coated Steel case. Powered by the 6337 caliber with 30j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-8eea06208a8a]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1990

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