Seiko Cal. 4457 - 850

The 4457-850 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4457 caliber with 28j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-ebf54342c25b]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1993

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