Seiko Cal. 5673 - 363

The 5673-363 is a sought-after Automatic piece from Seiko's golden era. With its 21mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-536fbd12cbe1]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1979

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