Seiko Cal. 0739 - 633

The Seiko 0739-633 represents an important milestone in Seiko's 1970 lineup. Powered by the 0739 caliber with 19j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-2b764eeabf82]

Also known as: Tuna, Helmet

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1970

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