Seiko Cal. 3852 - 639

The Seiko 3852-639 represents an important milestone in Seiko's 1971 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-1e5f0509a636]

Also known as: World Timer, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Champagne

Jewels

35j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1971

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