Seiko Cal. 3870 - 734

The 3870-734 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3870 caliber with 17j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-f94edd948db3]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1984

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