Seiko Cal. 4430 - 857

The 4430-857 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4430 caliber with 23j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-24867fd8b152]

Also known as: Panda, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1975

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