Seiko Cal. 6688 - 346

This Hand-Winding model from 1989 features a 36mm Two-Tone case. Powered by the 6688 caliber with 29j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-df7300d4321d]

Also known as: Bullhead, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1989

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