Seiko Cal. 6370 - 590

The 6370-590 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6370 caliber with 36j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-c1b0dad92668]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1973

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