Seiko Cal. 6183 - 557

The Seiko 6183-557 represents an important milestone in Seiko's 1965 lineup. With its 18mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-0d86008fa21a]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1965

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