Seiko Cal. 4428 - 656

The Seiko 4428-656 represents an important milestone in Seiko's 1996 lineup. Powered by the 4428 caliber with 17j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-f5c16e065b0d]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1996

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