Seiko Cal. 7078 - 978

The Seiko 7078-978 represents an important milestone in Seiko's 1965 lineup. Powered by the 7078 caliber with 17j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-36382ca0b0d5]

Also known as: Tuna, Bellmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1965

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