Seiko Cal. 4430 - 241

The 4430-241 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4430 caliber with 17j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-929a99164e1b]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1988

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