Seiko Cal. 6657 - 487

Seiko 6657-487

The 6657-487 is a sought-after Solar piece from Seiko's golden era. Powered by the 6657 caliber with 30j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-42b34a691b3c]

Also known as: Panda

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
40mm
Case Thickness
14.2mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
30m
Dial Color
Green
Jewels
30j
Frequency
21,600 bph
Power Reserve
65 hours
Year
1983

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