Seiko Cal. 7171 - 639

The Seiko 7171-639 represents an important milestone in Seiko's 1974 lineup. It features a Navy dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-957d5fbe5cf1]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1974

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