Seiko Cal. 4573 - 437

The Seiko 4573-437 represents an important milestone in Seiko's 1967 lineup. Powered by the 4573 caliber with 32j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-ac19de360c05]

Also known as: Tuna, Flighty

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1967

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