Seiko Cal. 4457 - 920

The Seiko 4457-920 represents an important milestone in Seiko's 1990 lineup. Powered by the 4457 caliber with 22j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-d5554721f814]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

22j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1990

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