Seiko Cal. 5628 - 724

The 5628-724 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5628 caliber with 31j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-4c17253f8807]

Also known as: Bullhead, UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1971

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