Seiko Cal. 4555 - 257

The Seiko 4555-257 represents an important milestone in Seiko's 1995 lineup. Powered by the 4555 caliber with 31j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-781b346d38a1]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1995

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