Seiko Cal. 6131 - 551

The 6131-551 is a sought-after Hand-Winding piece from Seiko's golden era. With its 19mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-4d609cb1da69]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1978

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