Seiko Cal. 4531 - 304

Seiko 4531-304

The Seiko 4531-304 represents an important milestone in Seiko's 1981 lineup. Powered by the 4531 caliber with 20j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-812cc936a9e0]

Also known as: Golden Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
41mm
Case Thickness
12.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1981

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seikata-wm-812cc936a9e0