Seiko Cal. 3860 - 675

Released in 1965, the Cal. 3860 with design code 675 was part of Seiko's domestic market collection. Powered by the 3860 caliber with 36j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-6db5260bedd5]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1965

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