Seiko Cal. 6657 - 616

Seiko 6657-616

The 6657-616 is a sought-after Solar piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-df468742b588]

Also known as: Sportsmatic

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
38mm
Case Thickness
14.8mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Green
Jewels
32j
Frequency
28,800 bph
Power Reserve
63 hours
Year
1974

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