Seiko Cal. 3860 - 365

This Hand-Winding model from 1981 features a 43mm Gold-Plated case. Powered by the 3860 caliber with 31j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-93507a7ca633]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1981

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