Seiko Cal. 4576 - 312

Seiko 4576-312

The Seiko 4576-312 represents an important milestone in Seiko's 1968 lineup. Powered by the 4576 caliber with 35j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-49b0b140b9ed]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
45mm
Case Thickness
11.7mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Blue Sunburst
Jewels
35j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1968

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