Seiko Cal. 3850 - 818

The Seiko 3850-818 represents an important milestone in Seiko's 1970 lineup. Powered by the 3850 caliber with 21j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-1fd8681ed6e6]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1970

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