Seiko Cal. 5641 - 537

The Seiko 5641-537 represents an important milestone in Seiko's 1993 lineup. Powered by the 5641 caliber with 31j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-968881d69346]

Also known as: Helmet, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1993

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