Seiko Cal. 3871 - 651

The Seiko 3871-651 represents an important milestone in Seiko's 1985 lineup. It features a Navy dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-513ea26603c6]

Also known as: Monster, Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1985

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