Seiko Cal. 5641 - 374

Released in 1972, the Cal. 5641 with design code 374 was part of Seiko's domestic market collection. Powered by the 5641 caliber with 22j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-435ed594a8b0]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1972

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