Seiko Cal. 4535 - 616

The 4535-616 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-7e8413e3c499]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1966

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