Seiko Cal. 6681 - 206

Seiko 6681-206

This Automatic model from 1970 features a 37mm Stainless Steel case. Powered by the 6681 caliber with 36j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-74865c7fb2d7]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
14.9mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Burgundy
Jewels
36j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1970

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