Seiko Cal. 0755 - 777

The Seiko 0755-777 represents an important milestone in Seiko's 1979 lineup. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-37e78cd96672]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1979

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