Seiko Cal. 6639 - 245

This Spring Drive model from 1990 features a 34mm Gold-Plated case. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-acda5a7b32f6]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1990

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