Seiko Cal. 4548 - 440

This Automatic model from 1985 features a 37mm Hardlex-Coated Steel case. Powered by the 4548 caliber with 27j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-363d0ba71c8d]

Also known as: World Timer, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1985

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