Seiko Cal. 4557 - 437

The Seiko 4557-437 represents an important milestone in Seiko's 1968 lineup. Powered by the 4557 caliber with 33j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-e9ff0cdef051]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

33j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1968

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