Seiko Cal. 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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