Seiko Cal. 6644 - 820

Seiko 6644-820

The Seiko 6644-820 represents an important milestone in Seiko's 1996 lineup. With its 19mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-b5ee56e04f5b]

Also known as: Bullhead, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
8.8mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Silver
Jewels
32j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1996

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