Seiko Cal. 3816 - 100

Released in 1972, the Cal. 3816 with design code 100 was part of Seiko's domestic market collection. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-ea7eab2fb140]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Champagne

Jewels

23j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1972

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