Seiko Cal. 4574 - 436

The 4574-436 is a sought-after Solar piece from Seiko's golden era. Powered by the 4574 caliber with 23j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-096f1c6719de]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1970

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