Seiko Cal. 5657 - 639

Seiko 5657-639

The 5657-639 is a sought-after Automatic piece from Seiko's golden era. It features a White dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-ee27f2fe0dff]

Also known as: Turtle

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
15.4mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
40m
Dial Color
White
Jewels
31j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1994

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