Seiko Cal. 5681 - 234

The 5681-234 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5681 caliber with 25j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-2820bbb0ae8a]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1968

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