Seiko Cal. 6613 - 647

The 6613-647 is a sought-after Solar piece from Seiko's golden era. Powered by the 6613 caliber with 29j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-bcbb4d325bea]

Also known as: Sumo, Sea Horse

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1984

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