Seiko Cal. 5641 - 574

The 5641-574 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5641 caliber with 29j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-e19d68e0e76f]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1986

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