Seiko Cal. 6697 - 728

Released in 1968, the Cal. 6697 with design code 728 was part of Seiko's domestic market collection. Powered by the 6697 caliber with 32j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-e21283c175fa]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1968

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