Seiko Cal. 5257 - 930

Released in 1970, the Cal. 5257 with design code 930 was part of Seiko's domestic market collection. Powered by the 5257 caliber with 20j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-71478a2c50c7]

Also known as: Panda, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1970

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