Seiko Cal. 4435 - 622

The 4435-622 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4435 caliber with 21j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-2a372e53cf56]

Also known as: Sumo, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1968

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