Seiko Cal. 4548 - 630

The Seiko 4548-630 represents an important milestone in Seiko's 1991 lineup. Powered by the 4548 caliber with 21j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-fc4d1825a398]

Also known as: World Timer, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1991

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