Seiko Cal. 5691 - 857

The 5691-857 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5691 caliber with 33j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-61025f75dfac]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1993

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