Seiko Cal. 6644 - 620

Seiko 6644-620

The 6644-620 is a sought-after Quartz piece from Seiko's golden era. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-68c6d1de93f6]

Also known as: Samurai, Monster

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
10.0mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Silver
Jewels
25j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1967

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