Seiko Cal. 5631 - 161

The 5631-161 is a sought-after Solar piece from Seiko's golden era. Powered by the 5631 caliber with 17j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-1b0151e671c7]

Also known as: Panda, Golden Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1999

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