Seiko Cal. 7136 - 445

This Spring Drive model from 1973 features a 44mm PVD Black case. It features a Burgundy dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-0843524e48c6]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1973

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