Seiko Cal. 6644 - 411

This Automatic model from 1972 features a 34mm PVD Black case. Powered by the 6644 caliber with 34j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-a7ba56e25f14]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1972

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