Seiko Cal. 6643 - 511

Seiko 6643-511

Released in 1989, the Cal. 6643 with design code 511 was part of Seiko's domestic market collection. Powered by the 6643 caliber with 33j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-63004660b80f]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
39mm
Case Thickness
11.1mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Black
Jewels
33j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1989

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seikata-wm-63004660b80f