Seiko Cal. 3852 - 440

The Seiko 3852-440 represents an important milestone in Seiko's 1971 lineup. Powered by the 3852 caliber with 20j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-de8e36bf505d]

Also known as: Monster, UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1971

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