Seiko Cal. 5277 - 643

The Seiko 5277-643 represents an important milestone in Seiko's 1968 lineup. With its 18mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-ed6bfe3e39b6]

Also known as: Bellmatic, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1968

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