Seiko Cal. 3816 - 911

The 3816-911 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3816 caliber with 33j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-9207c46674ef]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

33j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1972

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