Seiko Cal. 5650 - 731

This Hand-Winding model from 1965 features a 39mm Stainless Steel case. It features a Champagne dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-e070ae065f6e]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

36j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1965

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