Seiko Cal. 6340 - 812

This Hand-Winding model from 1977 features a 44mm Hardlex-Coated Steel case. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-9ce8c0e580ba]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1977

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