Seiko Cal. 5653 - 764

The 5653-764 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5653 caliber with 29j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-d56bedb2389e]

Also known as: Tuna, World Timer

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

46mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1977

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