Seiko Cal. 4546 - 178

The 4546-178 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4546 caliber with 33j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-2f70c849dfb0]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1971

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