Seiko Cal. 6678 - 421

Seiko 6678-421

The Seiko 6678-421 represents an important milestone in Seiko's 1998 lineup. Powered by the 6678 caliber with 19j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-ac204aa297d2]

Also known as: Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
38mm
Case Thickness
15.5mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
150m
Dial Color
White
Jewels
19j
Frequency
21,600 bph
Power Reserve
44 hours
Year
1998

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seikata-wm-ac204aa297d2