Seiko Cal. 4491 - 137

Seiko 4491-137

The 4491-137 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-769da419f36b]

Also known as: Monster, Pogue

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
40mm
Case Thickness
10.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Silver
Jewels
29j
Frequency
28,800 bph
Power Reserve
51 hours
Year
1977

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