Seiko Cal. 6657 - 690

Seiko 6657-690

The 6657-690 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-bf148a82ddb4]

Also known as: Samurai

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
8.2mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
30m
Dial Color
Navy
Jewels
27j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1998

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