Seiko Cal. 6658 - 320

Seiko 6658-320

The 6658-320 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-bcace1c46f02]

Also known as: Bullhead, Navigator

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
45mm
Case Thickness
13.8mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Navy
Jewels
27j
Frequency
28,800 bph
Power Reserve
54 hours
Year
1967

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