Seiko Cal. 4556 - 158

The Seiko 4556-158 represents an important milestone in Seiko's 1997 lineup. With its 18mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-b0cc30732f4a]

Also known as: UFO, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1997

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