Seiko Cal. 5231 - 789

The 5231-789 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5231 caliber with 17j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-b51857b55cff]

Also known as: Shogun, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1971

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