Seiko Cal. 4428 - 702

This Spring Drive model from 1997 features a 37mm Two-Tone case. Powered by the 4428 caliber with 24j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-7e519cef5494]

Also known as: Arnie, Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Cream

Jewels

24j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1997

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