Seiko Cal. 7138 - 789

The 7138-789 is a sought-after Kinetic piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-61e6d9fcfca2]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1977

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