Seiko Cal. 7121 - 640

The Seiko 7121-640 represents an important milestone in Seiko's 1984 lineup. It features a Silver dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-72c45aa5feed]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1984

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