Seiko Cal. 6373 - 521

The 6373-521 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6373 caliber with 36j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-3550bb0cc449]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1979

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