Seiko Cal. 3899 - 427

The 3899-427 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3899 caliber with 21j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-202632673476]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1975

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