Seiko Cal. 6377 - 387

The 6377-387 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-a75cb979cc74]

Also known as: Golden Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1975

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