Seiko Cal. 5646 - 522

Released in 1980, the Cal. 5646 with design code 522 was part of Seiko's domestic market collection. Powered by the 5646 caliber with 22j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-3fb536bc80de]

Also known as: Tuna, Crown

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1980

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