Seiko Cal. 6331 - 434

Seiko 6331-434

The Seiko 6331-434 represents an important milestone in Seiko's 1981 lineup. Powered by the 6331 caliber with 31j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-bd45ad50dd26]

Also known as: Shogun, Tuna

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
13.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Navy
Jewels
31j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1981

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seikata-wm-bd45ad50dd26