Seiko Cal. 5650 - 956

The Seiko 5650-956 represents an important milestone in Seiko's 1969 lineup. Powered by the 5650 caliber with 21j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-ecf20ba382e2]

Also known as: Helmet, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1969

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