Seiko Cal. 6121 - 237

Seiko 6121-237

The 6121-237 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-aa0a9bb58111]

Also known as: Monster, Bullhead

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
12.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Silver
Jewels
21j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1965

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