Seiko Cal. 4545 - 683

The Seiko 4545-683 represents an important milestone in Seiko's 1976 lineup. Powered by the 4545 caliber with 21j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-64f24b4a0c05]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1976

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