Seiko Cal. 5650 - 594

The Seiko 5650-594 represents an important milestone in Seiko's 1970 lineup. Powered by the 5650 caliber with 18j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-d9567c4f8118]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1970

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