Seiko Cal. 5243 - 817

The 5243-817 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5243 caliber with 21j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-41e66f156026]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1965

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