Seiko Cal. 5643 - 888

The Seiko 5643-888 represents an important milestone in Seiko's 1975 lineup. It features a Navy dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-7fb635972d33]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1975

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