Seiko Cal. 6647 - 616

The Seiko 6647-616 represents an important milestone in Seiko's 1996 lineup. Powered by the 6647 caliber with 22j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-d1bd9b5c5f2c]

Also known as: Tuna, Pogue

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1996

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