Seiko Cal. 5686 - 320

This Hand-Winding model from 1981 features a 44mm Stainless Steel case. Powered by the 5686 caliber with 30j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-f2aaf82f29d4]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1981

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