Seiko Cal. 3860 - 347

The Seiko 3860-347 represents an important milestone in Seiko's 1999 lineup. Powered by the 3860 caliber with 31j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-f2d89bb38e6e]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1999

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