Seiko Cal. 5646 - 101

The 5646-101 is a sought-after Solar piece from Seiko's golden era. Powered by the 5646 caliber with 19j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-e3be5f9babf9]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1976

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