Seiko Cal. 5694 - 181

The 5694-181 is a sought-after Solar piece from Seiko's golden era. Powered by the 5694 caliber with 21j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-8168fb73b2d9]

Also known as: Tuna, Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1977

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