Seiko Cal. 4548 - 228

The Seiko 4548-228 represents an important milestone in Seiko's 1985 lineup. Powered by the 4548 caliber with 20j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-09a82c5a530a]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1985

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