Seiko Cal. 5644 - 463

The 5644-463 is a sought-after Solar piece from Seiko's golden era. Powered by the 5644 caliber with 34j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-c0c00429a633]

Also known as: Tuna, Flighty

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Silver

Jewels

34j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1989

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