Seiko Cal. 5650 - 897

The 5650-897 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5650 caliber with 31j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-bc8215cfedaa]

Also known as: Helmet, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1971

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