Seiko Cal. 6377 - 406

The Seiko 6377-406 represents an important milestone in Seiko's 1983 lineup. With its 18mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-db0dea99a7e4]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1983

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