Seiko Cal. 6641 - 644

Seiko 6641-644

The 6641-644 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-84a38e1ff015]

Also known as: Pogue, Bellmatic

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
36mm
Case Thickness
11.2mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
30m
Dial Color
Silver
Jewels
23j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1979

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