Seiko Cal. 5653 - 321

This Quartz model from 1976 features a 37mm PVD Black case. Powered by the 5653 caliber with 32j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-41fc441df946]

Also known as: Tuna, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1976

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