Seiko Cal. 6331 - 550

Seiko 6331-550

The 6331-550 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-760483b7efb8]

Also known as: Shogun, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
38mm
Case Thickness
11.6mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Green
Jewels
19j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1988

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seikata-wm-760483b7efb8