Seiko Cal. 3872 - 643

The Seiko 3872-643 represents an important milestone in Seiko's 1986 lineup. It features a Navy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-ac028f88c3cf]

Also known as: Crown

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1986

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