Seiko Cal. 0721 - 642

The 0721-642 is a sought-after Automatic piece from Seiko's golden era. Powered by the 0721 caliber with 29j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-7b8a8ee2fe9b]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1969

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