Seiko Cal. 7183 - 640

The Seiko 7183-640 represents an important milestone in Seiko's 1991 lineup. Powered by the 7183 caliber with 35j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-ba7ec4cb652b]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1991

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