Seiko Cal. 4556 - 240

The Seiko 4556-240 represents an important milestone in Seiko's 1969 lineup. With its 19mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-09bd00117fe2]

Also known as: Goldfeather, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1969

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