Seiko Cal. 6643 - 654

Seiko 6643-654

The 6643-654 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6643 caliber with 18j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-c2fb20d8a445]

Also known as: Silverwave, Arnie

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
38mm
Case Thickness
11.0mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
120m
Dial Color
Navy
Jewels
18j
Frequency
28,800 bph
Power Reserve
53 hours
Year
1999

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