Seiko Cal. 5691 - 150

Released in 1965, the Cal. 5691 with design code 150 was part of Seiko's domestic market collection. It features a Cream dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-192fe0ae02e4]

Also known as: Turtle, Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

36j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1965

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