Seiko Cal. 3817 - 847

The 3817-847 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3817 caliber with 27j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-4edc2aa8217a]

Also known as: UFO, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1997

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