Seiko Cal. 7181 - 733

The 7181-733 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-4874340c3dcc]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1975

Related Models

• Seiko 6319-686
• Seiko 7021-572
• Seiko 7165-382
• Seiko 7018-927
• Seiko 6388-209
• Seiko 5647-281
• Seiko 6635-240
• Seiko 5628-237
• Seiko 4520-443
• Seiko 0737-288
• Seiko 6143-697
• Seiko 6349-542