Seiko Cal. 4441 - 525

The Seiko 4441-525 represents an important milestone in Seiko's 1972 lineup. Powered by the 4441 caliber with 19j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-ed5924eacf68]

Also known as: Silverwave, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1972

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