Seiko Cal. 6389 - 243

Released in 1980, the Cal. 6389 with design code 243 was part of Seiko's domestic market collection. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-e41d73af7fd2]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1980

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