Seiko Cal. 5640 - 574

The 5640-574 is a sought-after Solar piece from Seiko's golden era. Powered by the 5640 caliber with 26j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-9a448ddae4a8]

Also known as: Tuna, Arnie

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1993

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