Seiko Cal. 4430 - 256

The Seiko 4430-256 represents an important milestone in Seiko's 1999 lineup. Powered by the 4430 caliber with 36j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-b48b116a201d]

Also known as: UFO, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1999

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