Seiko Cal. 5648 - 872

The Seiko 5648-872 represents an important milestone in Seiko's 1978 lineup. It features a Black dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-ec9f33a75453]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1978

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