Seiko Cal. 5688 - 828

Released in 1968, the Cal. 5688 with design code 828 was part of Seiko's domestic market collection. It features a White dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-738ba455a24e]

Also known as: Pogue, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1968

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