Seiko Cal. 6634 - 527

The 6634-527 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6634 caliber with 30j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-64bcd303bdd9]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1982

Related Models

• Seiko 7086-846
• Seiko 7118-923
• Seiko 3844-375
• Seiko 3826-326
• Seiko 6279-363
• Seiko 6273-354
• Seiko 7033-226
• Seiko 7120-286
• Seiko 7061-674
• Seiko 7098-112
• Seiko 3873-957
• Seiko 7188-734