Seiko Cal. 5657 - 642

Seiko 5657-642

The 5657-642 is a sought-after Automatic piece from Seiko's golden era. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-75b700ad7cf7]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
14.0mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
70m
Dial Color
Cream
Jewels
30j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1986

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