Seiko Cal. 5240 - 233

The Seiko 5240-233 represents an important milestone in Seiko's 1986 lineup. Powered by the 5240 caliber with 35j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-7163845e0a78]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1986

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