Seiko Cal. 7136 - 557

The 7136-557 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-48f17ea32ea1]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1973

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