Seiko Cal. 5243 - 631

The 5243-631 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5243 caliber with 23j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-a8529f792eda]

Also known as: Samurai, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1987

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