Seiko Cal. 4577 - 818

The Seiko 4577-818 represents an important milestone in Seiko's 1997 lineup. Powered by the 4577 caliber with 25j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-981e8c8dbc1d]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1997

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