Seiko Cal. 5647 - 654

The Seiko 5647-654 represents an important milestone in Seiko's 1966 lineup. Powered by the 5647 caliber with 33j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-bc714923dff7]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1966

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