Seiko Cal. 7131 - 633

The 7131-633 is a sought-after Kinetic piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-267ea0a1a614]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1978

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