Seiko Cal. 6688 - 634

This Spring Drive model from 1975 features a 46mm Two-Tone case. It features a Silver dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-531a75a865e3]

Also known as: Samurai, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Silver

Jewels

22j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1975

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