Seiko Cal. 6133 - 131

Seiko 6133-131

The 6133-131 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6133 caliber with 17j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-20d7dbd1a485]

Also known as: Bullhead, Golden Tuna

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
42mm
Case Thickness
11.6mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
80m
Dial Color
Blue Sunburst
Jewels
17j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1966

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