Seiko Cal. 5641 - 955

The Seiko 5641-955 represents an important milestone in Seiko's 1968 lineup. With its 20mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-5f75c8db097e]

Also known as: Monster, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1968

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