Seiko Cal. 5665 - 734

This Hand-Winding model from 1979 features a 39mm Hardlex-Coated Steel case. Powered by the 5665 caliber with 36j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-660139dfd143]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1979

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