Seiko Cal. 0710 - 647

The 0710-647 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0710 caliber with 36j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-958db4f0a27d]

Also known as: Tuna, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1989

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