Seiko Cal. 3871 - 744

This Hand-Winding model from 1984 features a 39mm Gold-Plated case. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-97ec0ce08856]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1984

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