Seiko Cal. 6657 - 754

Seiko 6657-754

The 6657-754 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-a5d34eaccf2c]

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
10.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Green
Jewels
36j
Frequency
21,600 bph
Power Reserve
65 hours
Year
1971

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