Seiko Cal. 6657 - 209

Seiko 6657-209

The Seiko 6657-209 represents an important milestone in Seiko's 1984 lineup. Powered by the 6657 caliber with 17j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-58157943f722]

Also known as: Monster

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
42mm
Case Thickness
9.6mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Cream
Jewels
17j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1984

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