Seiko Cal. 3818 - 646

The Seiko 3818-646 represents an important milestone in Seiko's 1966 lineup. Powered by the 3818 caliber with 27j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-4922416195a6]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1966

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