Seiko Cal. 6644 - 710

Released in 1993, the Cal. 6644 with design code 710 was part of Seiko's domestic market collection. Powered by the 6644 caliber with 22j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-80ff8eab17b6]

Also known as: Panda, Bullhead

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1993

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