Seiko Cal. 5641 - 131

The 5641-131 is a sought-after Solar piece from Seiko's golden era. Powered by the 5641 caliber with 36j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-e9a2d2718b49]

Also known as: Goldfeather, Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

36mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1984

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