Seiko Cal. 3870 - 630

The 3870-630 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3870 caliber with 17j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-f3198bdf3487]

Also known as: Pogue, Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1976

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