Seiko Cal. 4428 - 724

The 4428-724 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4428 caliber with 35j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-4dfd72c00be1]

Also known as: Panda, Bullhead

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1967

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