Seiko Cal. 7157 - 851

The Seiko 7157-851 represents an important milestone in Seiko's 1965 lineup. It features a Green dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-4b680f24c786]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1965

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