Seiko Cal. 4439 - 355

The Seiko 4439-355 represents an important milestone in Seiko's 1999 lineup. Powered by the 4439 caliber with 22j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-3e6624cfe920]

Also known as: Bellmatic, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1999

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