Seiko Cal. 3899 - 747

The 3899-747 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3899 caliber with 20j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-5c48bc8372ae]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1976

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