Seiko Cal. 7136 - 186

This Spring Drive model from 1968 features a 43mm Two-Tone case. It features a White dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-c87b75753d9b]

Also known as: Helmet, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1968

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