Seiko Cal. 6643 - 398

Seiko 6643-398

The 6643-398 is a sought-after Kinetic piece from Seiko's golden era. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-924047c8f453]

Also known as: Bullhead

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
35mm
Case Thickness
9.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Burgundy
Jewels
19j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1972

Related Models

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