Seiko Cal. 5642 - 651

The Seiko 5642-651 represents an important milestone in Seiko's 1972 lineup. Powered by the 5642 caliber with 33j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-3b68be09c589]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1972

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