Seiko Cal. 4555 - 725

The 4555-725 is a sought-after Solar piece from Seiko's golden era. Powered by the 4555 caliber with 23j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-c4d007a3a528]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1971

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