Seiko Cal. 0770 - 710

Released in 1969, the Cal. 0770 with design code 710 was part of Seiko's domestic market collection. Powered by the 0770 caliber with 20j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-b1c55e5b42d7]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1969

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