Seiko Cal. 4543 - 645

The 4543-645 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4543 caliber with 22j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-ce754dfc02ca]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1969

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