Seiko Cal. 3820 - 100

Released in 1972, the Cal. 3820 with design code 100 was part of Seiko's domestic market collection. With its 18mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-bdfc5240cee9]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1972

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