Seiko Cal. 4557 - 741

The Seiko 4557-741 represents an important milestone in Seiko's 1995 lineup. Powered by the 4557 caliber with 27j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-d78fc7c18703]

Also known as: Bullhead, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1995

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