Seiko Cal. 4522 - 216

The 4522-216 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-9b2b866a5556]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1968

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