Seiko Cal. 6657 - 347

Seiko 6657-347

The 6657-347 is a sought-after Kinetic piece from Seiko's golden era. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-c4f4c094e759]

Also known as: Bullhead

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
11.4mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Navy
Jewels
21j
Frequency
28,800 bph
Power Reserve
42 hours
Year
1970

Related Models

seikata-wm-c4f4c094e759