Seiko Cal. 5257 - 259

The 5257-259 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5257 caliber with 18j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-c0d2ba13a8f2]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1984

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