Seiko Cal. 5639 - 726

The Seiko 5639-726 represents an important milestone in Seiko's 1988 lineup. It features a Silver dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-e15dff8eada6]

Also known as: Samurai, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1988

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