Seiko Cal. 4416 - 428

The 4416-428 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4416 caliber with 28j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-12b80fda18e1]

Also known as: Turtle, Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1969

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