Seiko Cal. 6381 - 457

Seiko 6381-457

Released in 1980, the Cal. 6381 with design code 457 was part of Seiko's domestic market collection. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-4a3119f4a9b6]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
15.4mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
White
Jewels
25j
Frequency
36,000 bph
Power Reserve
40 hours
Year
1980

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