Seiko Cal. 4561 - 284

The Seiko 4561-284 represents an important milestone in Seiko's 1970 lineup. Powered by the 4561 caliber with 32j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-a1576d3d427a]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1970

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