Seiko Cal. 5243 - 765

The 5243-765 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5243 caliber with 27j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-a4293aee32d4]

Also known as: Tuna, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1998

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