Seiko Cal. 6643 - 474

Seiko 6643-474

The 6643-474 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6643 caliber with 18j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-afb5361b685b]

Also known as: Bellmatic

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
34mm
Case Thickness
9.4mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
White
Jewels
18j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1998

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