Seiko Cal. 5628 - 644

The 5628-644 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5628 caliber with 19j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-a637928f8474]

Also known as: Rally, Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1973

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