Seiko Cal. 4543 - 642

The 4543-642 is a sought-after Automatic piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-994ccd450f4f]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1988

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