Seiko Cal. 5641 - 601

The Seiko 5641-601 represents an important milestone in Seiko's 1978 lineup. Powered by the 5641 caliber with 33j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-d30dc243d051]

Also known as: Sportsmatic, Crown

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1978

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