Seiko Cal. 4548 - 401

The Seiko 4548-401 represents an important milestone in Seiko's 1985 lineup. Powered by the 4548 caliber with 28j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-cd9b26c23266]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1985

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