Seiko Cal. 4577 - 307

Released in 1993, the Cal. 4577 with design code 307 was part of Seiko's domestic market collection. Powered by the 4577 caliber with 31j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-9ed75ec5fb22]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1993

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