Seiko Cal. 4581 - 311

Seiko 4581-311

The Seiko 4581-311 represents an important milestone in Seiko's 1998 lineup. It features a Black dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-a762abcf5e9a]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
40mm
Case Thickness
8.4mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Black
Jewels
31j
Frequency
36,000 bph
Power Reserve
36 hours
Year
1998

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