Seiko Cal. 5665 - 406

The 5665-406 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-0799435333ab]

Also known as: Monster, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1992

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