Seiko Cal. 6381 - 599

Seiko 6381-599

The Seiko 6381-599 represents an important milestone in Seiko's 1965 lineup. Powered by the 6381 caliber with 28j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-39ea1235d0e7]

Also known as: Tuna, Bellmatic

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
14.9mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Green
Jewels
28j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1965

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