Seiko Cal. 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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