Seiko Cal. 5643 - 411

The 5643-411 is a sought-after Solar piece from Seiko's golden era. Powered by the 5643 caliber with 28j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-27766e0be985]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1991

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