Seiko Cal. 3831 - 146

Released in 1965, the Cal. 3831 with design code 146 was part of Seiko's domestic market collection. With its 18mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-ff71786bdac5]

Also known as: Bellmatic, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1965

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