Seiko Cal. 3871 - 399

The Seiko 3871-399 represents an important milestone in Seiko's 1999 lineup. It features a Green dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-ac170c62af11]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1999

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