Seiko Cal. 7040 - 161

The Seiko 7040-161 represents an important milestone in Seiko's 1968 lineup. With its 21mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-52c45dcfbadb]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1968

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