Seiko Cal. 6644 - 855

Seiko 6644-855

The 6644-855 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-985c769fc869]

Also known as: Turtle, Bullhead

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
9.5mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
90m
Dial Color
Green
Jewels
22j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1975

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