Seiko Cal. 4425 - 601

Released in 1965, the Cal. 4425 with design code 601 was part of Seiko's domestic market collection. Powered by the 4425 caliber with 21j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-56b1db4cd047]

Also known as: Sumo, Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1965

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