Seiko Cal. 4594 - 638

The Seiko 4594-638 represents an important milestone in Seiko's 1985 lineup. Powered by the 4594 caliber with 33j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-68258d61757d]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1985

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