Seiko Cal. 5648 - 471

The Seiko 5648-471 represents an important milestone in Seiko's 1977 lineup. Powered by the 5648 caliber with 28j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-57bbb827aad4]

Also known as: UFO, Crown

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1977

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