Seiko Cal. 3840 - 217

The Seiko 3840-217 represents an important milestone in Seiko's 1979 lineup. Powered by the 3840 caliber with 32j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-91a3b474bcef]

Also known as: UFO, Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1979

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