Seiko Cal. 3823 - 639

Released in 1967, the Cal. 3823 with design code 639 was part of Seiko's domestic market collection. With its 22mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-6faa200bce72]

Also known as: Monster, Sumo

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1967

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