Seiko Cal. 0777 - 437

The Seiko 0777-437 represents an important milestone in Seiko's 1977 lineup. With its 20mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-7593445eb297]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1977

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