Seiko Cal. 3813 - 372

Released in 1968, the Cal. 3813 with design code 372 was part of Seiko's domestic market collection. With its 19mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-25916cf2cb67]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1968

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