Seiko Cal. 6657 - 388

Seiko 6657-388

The 6657-388 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6657 caliber with 27j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-b05bd563a5aa]

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
36mm
Case Thickness
14.7mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Navy
Jewels
27j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1987

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