Seiko Cal. 3860 - 103

The Seiko 3860-103 represents an important milestone in Seiko's 1971 lineup. Powered by the 3860 caliber with 18j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-b44383fd465b]

Also known as: Tuna, Pogue

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1971

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