Seiko Cal. 6640 - 904

Seiko 6640-904

The 6640-904 is a sought-after Automatic piece from Seiko's golden era. It features a Cream dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-e227e102bd4a]

Also known as: Pogue

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
35mm
Case Thickness
12.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
130m
Dial Color
Cream
Jewels
19j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1985

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