Seiko Cal. 5658 - 648

The Seiko 5658-648 represents an important milestone in Seiko's 1970 lineup. It features a Navy dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-d23af4d205f7]

Also known as: World Timer, Flighty

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1970

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