Seiko Cal. 6644 - 777

The 6644-777 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6644 caliber with 19j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-71f05b08ead8]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1997

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