Seiko Cal. 5640 - 625

Seiko 5640-625

The 5640-625 is a sought-after Automatic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-77d98bf6b052]

Also known as: Pogue, Baby Tuna

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
45mm
Case Thickness
12.4mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Blue Sunburst
Jewels
33j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1970

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