Seiko Cal. 7138 - 864

The 7138-864 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-0129ceb7aa6f]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Burgundy

Jewels

30j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1988

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