Seiko Cal. 4496 - 257

The Seiko 4496-257 represents an important milestone in Seiko's 1974 lineup. Powered by the 4496 caliber with 17j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-a5bdb9cd4b0c]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1974

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