Seiko Cal. 4557 - 271

The Seiko 4557-271 represents an important milestone in Seiko's 1975 lineup. Powered by the 4557 caliber with 31j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-217192d0831e]

Also known as: Navigator, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1975

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