Seiko Cal. 6645 - 198

Seiko 6645-198

The 6645-198 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6645 caliber with 32j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-c5d857d30392]

Also known as: Bullhead

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
43mm
Case Thickness
8.7mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Black
Jewels
32j
Frequency
28,800 bph
Power Reserve
51 hours
Year
1996

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