Seiko Cal. 3851 - 865

The Seiko 3851-865 represents an important milestone in Seiko's 1975 lineup. It features a Navy dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-8c51e92a05d3]

Also known as: Monster

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1975

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