Seiko Cal. 4556 - 161

This Automatic model from 1980 features a 42mm Two-Tone case. With its 22mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-fc6dbb5473da]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1980

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