Seiko Cal. 5646 - 555

The Seiko 5646-555 represents an important milestone in Seiko's 1972 lineup. Powered by the 5646 caliber with 34j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-167243d33ba6]

Also known as: Bellmatic, Crown

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1972

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