Seiko Cal. 7171 - 904

This Spring Drive model from 1975 features a 35mm Two-Tone case. It features a Cream dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-cc2feed5e1f0]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1975

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