Seiko Cal. 4457 - 178

The 4457-178 is a sought-after Solar piece from Seiko's golden era. Powered by the 4457 caliber with 18j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-77e181d301e8]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1970

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